function slideFrame(o){
	var left = o.src.indexOf('/l.gif')>0;
	o.src=left?'/common/slide/frame/r.gif':'/common/slide/frame/l.gif';
	parent.document.getElementsByTagName('frameset')[0].cols =left?'10,*':'200,*';
	$('slide_main').style.display=left?'none':'';
}
